CN111713270A - Open type spiral longitudinal axis threshing cylinder - Google Patents
Open type spiral longitudinal axis threshing cylinder Download PDFInfo
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- CN111713270A CN111713270A CN201910221883.1A CN201910221883A CN111713270A CN 111713270 A CN111713270 A CN 111713270A CN 201910221883 A CN201910221883 A CN 201910221883A CN 111713270 A CN111713270 A CN 111713270A
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- spiral
- rod
- spoke disc
- disc
- rear end
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/22—Threshing cylinders with teeth
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/46—Mechanical grain conveyors
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Threshing Machine Elements (AREA)
Abstract
The invention relates to an open type spiral longitudinal axis threshing cylinder, and belongs to the technical field of agricultural machinery. One end of the roller is provided with a spiral feeding head and a front end spoke disc fixedly connected with the spiral feeding head, and the other end of the roller is provided with a rear end spoke disc; the spiral fixed pipe is fixedly connected between the front end spoke disc and the rear end spoke disc and is uniformly distributed in the circumferential direction, a spiral rod is wound outside the spiral fixed pipe and is wound to the rear end spoke disc from the front end spoke disc in the same rotating direction as the spiral feeding head, radial rod teeth are distributed on the spiral rod at equal intervals, and a flexible sleeve is sleeved outside the spiral rod teeth. When threshing, the straw moves along the direction of the spiral line, thereby not only effectively avoiding the occurrence of blockage and winding phenomena, but also reducing the power consumption, being beneficial to cleaning and reducing the impurity rate; effectively reducing the crushing rate and the cleaning workload.
Description
Technical Field
The invention relates to a device mainly used for efficiently threshing crops such as rice, wheat, soybean and the like, in particular to an open type spiral longitudinal axis threshing cylinder, belonging to the technical field of agricultural machinery.
Background
The drum is a core part in the grain combine harvester. The structure of the longitudinal axial flow roller is similar to that of a common roller, and the longitudinal axial flow roller is generally divided into a cylindrical type and a conical type according to the shape. The cylindrical roller needs to make the grains move along the axial direction by means of a guide plate; the conical roller has a taper angle of 10-15 degrees, grains enter from the small end and move along the roller towards the big end, and the larger the taper angle is, the faster the grains move in the axial direction. In addition, according to the structural form, the threshing cylinder is divided into an open type and a closed type, most cylinders are open type, and the application range is wide; however, if large and fragile crops are removed, the closed roller has better effect when the roller rotates at low speed.
The structure of the longitudinal axial flow drum is shown in chinese patent documents CN2015105537826 and the like, in which the front stage is mainly threshing and the rear stage is mainly separating. Although the longer the threshing cylinder, the higher the separation efficiency, the longer the cylinder, the more power it must consume, so the shorter the cylinder length, the better the threshing and separation requirements. The length of the longitudinal axial flow threshing cylinder on the existing combine harvester is between 1m and 3 m. In order to obtain larger feeding amount and better threshing separation effect, the length of a longitudinal axial flow roller needs to be increased, but simultaneously, the longitudinal length of the whole machine is increased, and when crops with easily damaged soybeans and the like are encountered, the problems of larger entrainment loss rate and breakage rate, incomplete separation, low operation efficiency, large power consumption and the like often occur, and the field operation performance of the combine harvester is seriously influenced.
Disclosure of Invention
The invention aims to: aiming at the defects in the prior art, the open type spiral longitudinal axis threshing cylinder has the advantages of good threshing effect, low grain breakage rate, energy consumption saving and simple structure.
In order to achieve the purpose, the basic technical scheme of the open type spiral longitudinal shaft threshing cylinder is as follows: one end is a spiral feeding head and a front end spoke disc fixedly connected with the spiral feeding head, and the other end is a rear end spoke disc; the spiral fixed pipe is fixedly connected between the front end spoke disc and the rear end spoke disc and is uniformly distributed in the circumferential direction, a spiral rod is wound outside the spiral fixed pipe and is wound to the rear end spoke disc from the front end spoke disc in the same rotating direction as the spiral feeding head, radial rod teeth are distributed on the spiral rod at equal intervals, and a flexible sleeve is sleeved outside the spiral rod teeth.
The rod teeth distributed on the spiral rod are linearly distributed compared with the traditional spike teeth, so that the rod teeth in the circumferential dynamic space of the threshing cylinder are distributed more uniformly, the function of promoting more uniform threshing of seeds in the rotation process of the threshing cylinder is realized, cleaning is facilitated, and the impurity content is reduced; and the flexible cover of pole tooth outer parcel has realized flexible threshing, reduces the damage to seed grain greatly, has effectively reduced the percentage of damage, and the destruction to the straw is also little simultaneously, makes the straw impurity of cleaning the link significantly reduce, has effectively reduced the work load of cleaning, has reduced the cleaning consumption.
The invention further perfects that:
axially extending scrapers are distributed on a spiral plate of the spiral feeding head at intervals.
And a middle spoke plate is fixedly connected between the front end spoke plate and the rear end spoke plate, so that the roller has better rigidity.
The spiral fixing pipe is externally wound and fixed with two spiral rods which form a plurality of spiral coils which are uniformly distributed in the axial direction, each spiral coil is distributed with the same number of rod teeth, and the axial projections of the rod teeth are staggered.
The spiral rod is provided with a spiral line with the opposite direction to the spiral rod.
The outer end of the rod tooth is exposed by 6mm plus or minus 1 mm.
Drawings
In order to more clearly describe the present invention, embodiments will be briefly described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic perspective view of the embodiment of fig. 1.
Fig. 3 is a schematic perspective view of the embodiment of fig. 1 from another perspective.
FIG. 4 is a perspective view of the main shaft portion of the embodiment of FIG. 1.
Fig. 5 is a schematic view of the bar tooth configuration in the embodiment of fig. 1.
In the figure: the spiral feeding device comprises a bearing 1, a spiral feeding head disk cover 2, a spiral feeding head 3, a short spiral rod 4, a long spiral rod 5, a rod tooth 6, a rubber sleeve 7, a spiral fixing pipe 8, a circular pipe 9, a circular pipe mounting seat 10, a rear reinforcing disk 10, a middle spoke disk 11, a rear spoke disk 12, a main shaft 13, a middle connecting plate 14, a front spoke disk 15, a front spiral feeding head disk 16 and a front connecting shaft head 17.
Detailed Description
As shown in fig. 1, 2 and 3 and fig. 4, the open-type spiral longitudinal axis threshing cylinder of the embodiment has a main shaft 13 supported at the front end of a connecting shaft head 17, wherein one end of the main shaft is fixedly connected with a spiral feeding head 3 and a front end spoke disc 15, and the other end of the main shaft is fixedly connected with a rear end spoke disc 12; and a middle spoke plate 11 is fixedly connected between the front spoke plate 15 and the rear spoke plate 12. The spiral plate of the spiral feeding head 3 is provided with scrapers which are axially extended and are shaped like triangular supports at intervals, so that smooth and continuous grain feeding can be effectively guaranteed, and the effect of increasing the rigidity of the spiral plate is achieved. The outer end of the spiral feeding head 3 is a spiral feeding head front disc 16, and the spiral feeding head front disc 16 and the spiral feeding head disc cover 2 form a revolute pair through a central bearing 1.
Six right-angle circular tube mounting seats 9 are uniformly distributed and fixed on the front end spoke disc 15 and the rear end spoke disc 12 in the circumferential direction respectively, and a concave middle connecting plate 14 is arranged at the corresponding position of the middle spoke disc 11. The front end spoke discs 15 and the rear end spoke discs 12 are opposite to each other, the circular tube mounting seats 9 are fixedly connected and clamped with the spiral fixing tubes 8 which are located on the corresponding middle connecting plates 14, and notches which are inserted into the circular tube mounting seats 9 are formed in the two ends of each spiral fixing tube 8 respectively, so that a stable open type hollow-out roller framework structure is formed.
The spiral fixing pipe 8 is externally wound to two spiral rods forming a plurality of spiral rings in the axial direction from a front end radial disc 15 to a rear end radial disc 12 in the same rotary direction as the spiral feeding head 3, six radial rod teeth 6 are distributed on each spiral rod at equal intervals, and a toothed rod on one spiral rod is shorter than the other spiral rod, so that the spiral fixing pipe is divided into a short spiral rod 4 and a long spiral rod 5, different threshing gaps can be formed between the spiral fixing pipe and a concave plate sieve, the spiral fixing pipe not only can adapt to threshing of crops with different grain sizes, but also can avoid blockage of straws in the inside of a roller in the threshing process. In addition, the axial projections of the rod teeth 6 are staggered, so that the threshing function is more uniform, and the separation effect is better.
As shown in figure 5, the outer surface of the screw rod tooth 6 is provided with six spiral lines with the opposite spiral directions to the screw rod, and the rubber flexible sleeve 7 is sleeved outside, so that the flexible sleeve is convenient to screw and mount, and can be prevented from falling off in work by the aid of the reverse spiral effect. Researches show that grain threshing mainly depends on the top of the rod teeth for striking, and other parts have auxiliary threshing function; if all the rod teeth are metal rods, grains are easy to be broken due to overlarge striking force; on the other hand, if the spiral rod teeth are all wrapped by the rubber sleeve, the grain threshing is incomplete because of small hitting force of the rubber, so that the outer ends of the rod teeth 6 of the embodiment are exposed by about 6 mm. Repeated tests comprehensively consider factors such as the shape and the size of grain seeds, and prove that the threshing effect is optimal when the outer ends of the rod teeth are exposed by about 6 mm.
Tests show that compared with the prior art, the threshing cylinder of the embodiment has the following remarkable advantages after being matched with the concave plate sieve:
1) the straw moves along the direction of the spiral line, so that the straw can be smoothly discharged from the outlet, the phenomena of blockage and straw winding are avoided, and the power consumption during threshing is reduced.
2) The spiral distribution of the upper rod teeth of the spiral roller enables the separated grains to be distributed more uniformly, thereby being beneficial to further cleaning and reducing the impurity rate.
3) The helix on the helical rod tooth can effectively prevent the rubber sleeve from falling off under the working state.
4) The rubber sleeve wrapped outside the spiral rod teeth can realize flexible threshing, has small damage to grains and effectively reduces the crushing rate of grains; the damage of the rod teeth with the rubber sleeves to the straws is small, so that less straw impurities can fall into the cleaning system, the workload of the cleaning system is effectively reduced, and the power consumption of the cleaning system is reduced.
Claims (6)
1. An open type spiral longitudinal axis threshing cylinder, one end of which is provided with a spiral feeding head and a front end spoke disc (15) fixedly connected with the spiral feeding head, and the other end of which is provided with a rear end spoke disc (12); the method is characterized in that: the spiral fixed pipe (8) which is uniformly distributed in the circumferential direction is fixedly connected between the front end spoke disc and the rear end spoke disc, the spiral fixed pipe is externally wound with a fixed spiral rod, the spiral rod is wound to the rear end spoke disc from the front end spoke disc in the same rotating direction as the spiral feeding head, radial rod teeth (6) are distributed on the spiral rod at equal intervals, and flexible sleeves (7) are sleeved outside the spiral rod teeth.
2. The open helical longitudinal axis threshing cylinder according to claim 1, wherein: the spiral fixed pipe is externally coiled from a front end radial disc to a rear end radial disc in the same rotary direction as the spiral feeding head to form two spiral rods with a plurality of turns of spiral coils uniformly distributed in the axial direction, and the axial projection of each rod tooth is staggered; radial rod teeth are distributed on each circle of spiral rod at equal intervals, and the tooth rod on one spiral rod is shorter than the other spiral rod.
3. The open helical longitudinal axis threshing cylinder according to claim 2, wherein: a middle spoke disc is fixedly connected between the front end spoke disc and the rear end spoke disc through a main shaft, right-angle circular tube mounting seats are uniformly distributed and fixed on the front end spoke disc and the rear end spoke disc in the circumferential direction respectively, and concave middle connecting plates are arranged at corresponding positions of the middle spoke disc; the two ends of the spiral fixing pipe are respectively provided with a notch inserted on the round pipe mounting seat, and the middle part of the spiral fixing pipe is clamped and fixed on the middle connecting plate.
4. The open helical longitudinal axis threshing cylinder according to claim 3, wherein: the outer surface of the spiral rod tooth is provided with a spiral line with the rotating direction opposite to that of the spiral rod, and a flexible sleeve is sleeved outside the spiral line.
5. The open helical longitudinal shaft threshing cylinder according to claim 4, wherein: the outer end of the rod tooth is exposed by 6mm plus or minus 1 mm.
6. The open helical longitudinal axis threshing cylinder according to claim 5, wherein: the spiral plate of the spiral feeding head is provided with scrapers which are axially extended and are shaped like triangular supports at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221883.1A CN111713270A (en) | 2019-03-22 | 2019-03-22 | Open type spiral longitudinal axis threshing cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221883.1A CN111713270A (en) | 2019-03-22 | 2019-03-22 | Open type spiral longitudinal axis threshing cylinder |
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| CN111713270A true CN111713270A (en) | 2020-09-29 |
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| CN201910221883.1A Pending CN111713270A (en) | 2019-03-22 | 2019-03-22 | Open type spiral longitudinal axis threshing cylinder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210212260A1 (en) * | 2018-05-31 | 2021-07-15 | Kubota Corporation | Threshing Cylinder |
| CN113508690A (en) * | 2021-05-08 | 2021-10-19 | 河南科技大学 | Flexible threshing device capable of automatically adjusting threshing gap |
| CN113875402A (en) * | 2021-09-16 | 2022-01-04 | 华南农业大学 | Rigid-flexible coupling threshing cylinder device and regenerated rice combine harvester |
| JP7209236B1 (en) | 2021-11-26 | 2023-01-20 | 井関農機株式会社 | Threshing device threshing cylinder |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2867835Y (en) * | 2005-07-29 | 2007-02-14 | 湖南农业大学 | Threshing machine drum capable of reducing rice seed damage |
| CN201078921Y (en) * | 2007-08-01 | 2008-07-02 | 肖凯 | Spiral lamina dentition formula threshing barrel |
| CN201263322Y (en) * | 2008-08-12 | 2009-07-01 | 江苏大学 | Adjustable lateral axial flow cylinder with spiral feeding blade |
| CN201323787Y (en) * | 2008-11-28 | 2009-10-14 | 福田雷沃国际重工股份有限公司 | Axial flow roller for harvester |
| WO2009154030A1 (en) * | 2008-06-17 | 2009-12-23 | ヤンマー株式会社 | Threshing section for combine |
| CN102077744A (en) * | 2009-11-26 | 2011-06-01 | 中国农业机械化科学研究院 | Threshing device and combine harvester having the same |
| CN103960003A (en) * | 2014-05-29 | 2014-08-06 | 湖南农业大学 | Flexible-tooth threshing system with adjustable threshing gap |
| CN104488456A (en) * | 2014-12-17 | 2015-04-08 | 中联重机股份有限公司 | Multifunctional threshing drum and corresponding combine harvester |
| CN204408989U (en) * | 2014-12-17 | 2015-06-24 | 中联重机股份有限公司 | A kind of multifunctional threshing cylinder and corresponding combine |
| CN205667126U (en) * | 2016-06-07 | 2016-11-02 | 华中农业大学 | A kind of two cutting tables twin-roll high-clearance rice harvesting machinery |
| CN106612994A (en) * | 2017-02-21 | 2017-05-10 | 山东巨明机械有限公司 | Threshing roller of corn kernel machine |
| WO2017171122A1 (en) * | 2016-03-31 | 2017-10-05 | 대동공업 주식회사 | Threshing device for full-feed combine |
| CN107371643A (en) * | 2017-08-17 | 2017-11-24 | 星光农机股份有限公司 | A kind of millet harvest-seed extraction roller |
| CN206686650U (en) * | 2017-04-21 | 2017-12-01 | 农业部南京农业机械化研究所 | A kind of longitudinally axial flow threshing roller |
| CN107455096A (en) * | 2017-09-26 | 2017-12-12 | 江苏大学 | A kind of united reaper negative stiffness longitudinally axial flow threshing roller |
| CN108575337A (en) * | 2018-05-07 | 2018-09-28 | 河北锦禾农业机械有限公司 | A kind of threshing cylinder of Full feeding harvester |
| CN208300365U (en) * | 2018-06-20 | 2019-01-01 | 河南瑞创通用机械制造有限公司 | A kind of list longitudinal axial flow combined harvester threshing cylinder |
| CN208370326U (en) * | 2018-06-14 | 2019-01-15 | 扬州天利农机科技有限公司 | A kind of spiral ratch threshing cylinder |
| CN110881318A (en) * | 2018-09-11 | 2020-03-17 | 山东理工大学 | Threshing cylinder with adjustable telescopic length of rod teeth |
-
2019
- 2019-03-22 CN CN201910221883.1A patent/CN111713270A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2867835Y (en) * | 2005-07-29 | 2007-02-14 | 湖南农业大学 | Threshing machine drum capable of reducing rice seed damage |
| CN201078921Y (en) * | 2007-08-01 | 2008-07-02 | 肖凯 | Spiral lamina dentition formula threshing barrel |
| WO2009154030A1 (en) * | 2008-06-17 | 2009-12-23 | ヤンマー株式会社 | Threshing section for combine |
| CN201263322Y (en) * | 2008-08-12 | 2009-07-01 | 江苏大学 | Adjustable lateral axial flow cylinder with spiral feeding blade |
| CN201323787Y (en) * | 2008-11-28 | 2009-10-14 | 福田雷沃国际重工股份有限公司 | Axial flow roller for harvester |
| CN102077744A (en) * | 2009-11-26 | 2011-06-01 | 中国农业机械化科学研究院 | Threshing device and combine harvester having the same |
| CN103960003A (en) * | 2014-05-29 | 2014-08-06 | 湖南农业大学 | Flexible-tooth threshing system with adjustable threshing gap |
| CN204408989U (en) * | 2014-12-17 | 2015-06-24 | 中联重机股份有限公司 | A kind of multifunctional threshing cylinder and corresponding combine |
| CN104488456A (en) * | 2014-12-17 | 2015-04-08 | 中联重机股份有限公司 | Multifunctional threshing drum and corresponding combine harvester |
| WO2017171122A1 (en) * | 2016-03-31 | 2017-10-05 | 대동공업 주식회사 | Threshing device for full-feed combine |
| CN205667126U (en) * | 2016-06-07 | 2016-11-02 | 华中农业大学 | A kind of two cutting tables twin-roll high-clearance rice harvesting machinery |
| CN106612994A (en) * | 2017-02-21 | 2017-05-10 | 山东巨明机械有限公司 | Threshing roller of corn kernel machine |
| CN206686650U (en) * | 2017-04-21 | 2017-12-01 | 农业部南京农业机械化研究所 | A kind of longitudinally axial flow threshing roller |
| CN107371643A (en) * | 2017-08-17 | 2017-11-24 | 星光农机股份有限公司 | A kind of millet harvest-seed extraction roller |
| CN107455096A (en) * | 2017-09-26 | 2017-12-12 | 江苏大学 | A kind of united reaper negative stiffness longitudinally axial flow threshing roller |
| CN108575337A (en) * | 2018-05-07 | 2018-09-28 | 河北锦禾农业机械有限公司 | A kind of threshing cylinder of Full feeding harvester |
| CN208370326U (en) * | 2018-06-14 | 2019-01-15 | 扬州天利农机科技有限公司 | A kind of spiral ratch threshing cylinder |
| CN208300365U (en) * | 2018-06-20 | 2019-01-01 | 河南瑞创通用机械制造有限公司 | A kind of list longitudinal axial flow combined harvester threshing cylinder |
| CN110881318A (en) * | 2018-09-11 | 2020-03-17 | 山东理工大学 | Threshing cylinder with adjustable telescopic length of rod teeth |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210212260A1 (en) * | 2018-05-31 | 2021-07-15 | Kubota Corporation | Threshing Cylinder |
| US11917947B2 (en) * | 2018-05-31 | 2024-03-05 | Kubota Corporation | Threshing cylinder |
| CN113508690A (en) * | 2021-05-08 | 2021-10-19 | 河南科技大学 | Flexible threshing device capable of automatically adjusting threshing gap |
| CN113875402A (en) * | 2021-09-16 | 2022-01-04 | 华南农业大学 | Rigid-flexible coupling threshing cylinder device and regenerated rice combine harvester |
| JP7209236B1 (en) | 2021-11-26 | 2023-01-20 | 井関農機株式会社 | Threshing device threshing cylinder |
| JP2023078961A (en) * | 2021-11-26 | 2023-06-07 | 井関農機株式会社 | Threshing cylinder of thresher |
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Application publication date: 20200929 |